Humboldt, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 17.7 °C (high). Annual precipitation averages 851.7 Millimeters. Humboldt is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.2 °C | 1.9 °C | 19.81 mm |
| February | -7.1 °C | 4.9 °C | 28.19 mm |
| March | -1.4 °C | 11.9 °C | 54.1 mm |
| April | 4.6 °C | 18 °C | 81.28 mm |
| May | 11.3 °C | 23.7 °C | 129.54 mm |
| June | 16.9 °C | 28.8 °C | 117.86 mm |
| July | 19.1 °C | 31.1 °C | 108.2 mm |
| August | 17.7 °C | 30.2 °C | 91.44 mm |
| September | 12.3 °C | 26.4 °C | 81.03 mm |
| October | 5.6 °C | 19.8 °C | 65.53 mm |
| November | -1.3 °C | 11.2 °C | 43.69 mm |
| December | -6.6 °C | 4.4 °C | 30.99 mm |
| Annual | 5.2 °C | 17.7 °C | 851.66 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |